Supplemental-seat attachment for motor-cycles, bicycles, and like machines.



O. W. DUCKWORTH. SUPPLEMENTAL SEAT ATTACHMENT FOR MOTOR CYCLES, BIGYGLES, AND LIKE MACHINES.

APPLICATION EILED MAR. 26, 1912.

1,050,722, Patented Jan.14,1913.

PATENT OEFICE.

CHARLES w. nucxwonm, or .iAcxsonvnmn, FLORIDA.

, SUPPLEMENTAL-SEAT arracn-iannrroa Moron-excites, BICYCLES, AND LIKEZ MACHINES.

Specification of Letters Patent.

Patented Jan. 14,191 3 Application filed March-26, 1912. Serial No. 686,256.

To all whom it may concern:

Be it known that I, CHARLES W. DUCK- WORTH, a citizen of the United States, and a resident of Jacksonville, in the county of Duval and State of Florida, have invented a new and Improved Supplemental-Seat Attachment for Motor-Cycles, Bicycles, and Like Machines, of which the following is afull, clear, and exact description, I

The object of the invention is to-prov-ide anew and improved supplemental seat attachment for motor cycles, bicycles and like machines, and arranged o permit ofconveniently and quickly fas 'ening the attachment in position on the machinesto support a second person. For the purpose mentioned,- use is made of an auxiliary frame carrying a seat, foot rests and a handle bar, the auxiliary frame being pivotally connected at its forward upper end with the frame of the machine and being yieldingly supported from the rear axle of the machine. v

A practical embodiment of the invention is represented in thevaccompanying drawings forming a partof this specificatiomin' which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a side elevation of the attachment as applied to a motor cycle; Fig; 2 is a cross section of the same on the line 22-of Fig. 1, the seat being removed; Fig; 3 is anenlarged' cross section of one of the 'stays-;. Fig: 4-is a sectional plan view of the same: on the line 4-4 of Fig. '3; and Fig; 5-is-a 35 plan view of the clamping device connecting the front end ofthe'auxiliary frame with therear stays of the machine, the said rear stays being shown in section.

The auxiliary frame for su'ppcrtinga secv provided at its rear endrwith a seat-YB, in front of which' isarranged a handlebar 6 .attached to the top bar between the. front a (1 rear ends thereof. The: forward: end of' t e top bar A is pivotally connected a, clamping device D=attachedto the-frear-staysi. E of the motor cycle bicycle" orfother-similar machine E, as' plamlyindicated'tinz Elgar. 1 and '5. The clamping.device-.Dfconsistsiofi transversely-extending; clamping, bars, D

and D betweenwhich pass the rear stays E and the said clamping bars D andi D? are: connected with each otherxby, bolted)? for securely clamping. the-said bars 11* and D in position on the stays E1. Theclampingi b D is provider with mummy-6x 9nd person is provided with a top Bar Avi ftending lug 1) through which passes a bolt D also engaging the forward end A of the top bar A so as to pivotally connect the latterwith the clamping device D; By the arrangement described the top bar A is free to ;move up and down on the boltD as the ;fulcrum, but sidewise movement of. the top 'bar is prevented by the lug D.

' The rear end of the top bar A is provided with a transversely-extending pivot pin F :pivotally connected with caps G held on the 5 upper ends of tubular stays G extending jdownwardly, outwardly and forwardly on fopposite sides of the rear" axle E and the ire-a1 wheel E ofthe machine E, and in the. said stays G are loosely mounted blocks H- I. provided-with brackets H fastened by'bolts 3 or other means E to the, rear axle E ofthe 1 machine E. The brackets H extend throughj slots Gr formed in the tubular stays G, and ,each of the blocks H is provided on its top iwith a rod H extending to within a disttance of the top cap G and from the bottom 90f each block H extends downwardly a irod H reaching to within {M55011} distance- ;o-f'the bottom cap G of the corresponding.

,1 within each stay Gand c'oiled'-- around the upper rod H and the top of the said. spring" I abuts against the cap G A springJ- is arranged in the lower partrof eachv stay G and-Tiscoiledaround the rod H y'and the top of thisspring' J- abutsagainst' the under side of the block- H'andtheihottom off the spring: {rests on the cap '-'-;thearrangement describedathe rods and fl act-as guides for the block 1 1 when the latterinoves up o1" ldown. The spring'I acts as a shock ab sorber while the spring: J takes-uprebound's so as. to insure easy riding ofthe person;

seated on the seat B; Each; of the capsgfi" is provided with a. downwardly-extending ,rod G supportinga foot rest K: to permit {the person seated on the seat '13 to rest the foot on the rests K. The capsG -an'd Gr 5 are preferably securedain'place by: screwsL- toprevent theic'aps from: accidentally turnon the stay and: thus-avoid? a possible: bindingof: the-bracket H? on theistayr .r

, From" the foregoing, it: will be seen that. the attachment is--very simple and durable-imconstructibm and. can be readily-F at- .tmhedtoa motorcyclefor; a similar-maclune without any alteration on such ma chine, and: it will also be'noticed that by {supporting the" auxiliary. frame yieldingly tubular stay G. A spring I is arranged I from the rear axle E of the machine as described, necessary provision is. made for guarding against shocks and rebounds, .thus insuring easy riding of the person seated on the sea B.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. An attachment for motor cycles, bicycles and like machines, comprising an auxiliary frame carrying a seat, foot rests and a handle bar,-and adapted to be pivotally through'saidslots for connection with the connected at its forward end to the frame of the machine, tubular: stays forming part of said frame and each having a slot in one side. thereof, and sprmg-pressed'members mounted to slide in said stays and provided with brackets extending through the said slots rear axle of the machine, foot rests on the lower ends of the said stays, a seat on the rear end of the said top bar, and a handle bar on the said top bar in front of the said seat.

'3. A tandem attachment for motor cycles,-

- bicycles and like machines, comprising a top bar, a clamping device adapted to be clamped to the rear upper-end of the frame 'of the machine, the forward end of the said top barbeing pivotally connected with the said clamping device, a seat on .the rear end of the said top bar, a handle baimounted on the said top bar in front of thesaid seat, tubularstays pivotally connected with the rear end of the said top bar, brackets adapts ed to be attached to the rear axle of the machine and provided with blocks mounted to slide in the said tubular stays, and springs in each of the said tubular stays and engaging the corresponding block on top and bottom.

4:. A tandem attachment for motor cycles, bicycles and like machines,. comprising a -top bar, a clamping device adapted to be clamped to the rear upper end of the frame of the machine, the forward end of the said top bar. being pivotally connected with the said clam ing device, a seat on the rear end of the sai top'bar, a handle bar mounted on the said' top bar in front of the said seat, tubular stays pivotally connected with the rear end of thesaid top bar, brackets adapted to be attached to the rear axle of the machine and provided with blocks mounted to slide in the said tubular stays, rods, on each block and extending from the top and bottom thereof, the rods terminating at their ends a distance from the ends of the stays, coiled springs in the said stays and coiled around the said rods, and foot rests supported on the lower ends of the said stays.

5. A tandem attachment for motor cycles,

bicycles and like machines provided with an auxiliary frame comprising a top bar, tubular stays having slotsnear their lower ends and connected with the said top bar, brackets adapted to' be attached to the rear axle of the machine and extending through the said slots, blocks on the said brackets and mounted to slidein the said stays at the inside ,thereof, r'ods extending from the top and bottom of each block, and springs coiled on the said rods and pressing the said blocks at top and bottom, the ends of, the springs abutting against the ends of the corresponding stay. 6.. An attachment for motor cycles, bicyicles and like machines, comprising an aux- ,iliary frame having 'a top bar adapted to be .pivotally connected at its forward end to the frame of the machine, tubular stays having slots near their lower ends and pivotally connected attheir upper ends with the rear end of said top bar, and spring pressed blocks mounted to slide in the said stays andhaving members extending through the slots eihd adapted to be secured to the rear axle of the machine. a

7. An attachment for motor cycles, b1cy 'cles and like machines, comprising an auxiliary frame having a top bar carrying a seat and a handle bar, and adapted to be pivotally connected at its forward end to the frame of the machine, tubular stays having slots in their lower portions, caps secured on the ends of said stays, the caps at 'the u er ends ofthe stays being pivotally connected to the rear end of the top bar, blocks mounted to slide in the said stays and provided with brackets extending through the slots in the stays, the said brackets being adapted to be secured to the rear axle of the machine, springs in the said stays and pressing on the said blocks at the top and bottom thereof, and foot rests carried by the caps at the lower ends of the stays.

In testimony" whereof I have signed my name to this specification in the presence of two subscribing witnesses.

I CHARLES w. DUCKWORTH.

Ocpies of this patent may be obtained for five cents each, by addressing the Commissioner 0! Patents,

' Washington. D. o 

